I am the seller and the item has shown delivered since the 13th and my funds would be available on the 16th. I have not received payment and there is nothing pending in PayPal.

Is this one of the first things you've ever sold? The first 20 or so items the funds are held for 21days or until positive FB Is left. The more you sell it changes to as funds are available once delivery is confirmed. And then eventually funds are available immediately.